Abstract: Systems and methods for creating an autostereoscopic display include a holographic optical element (HOE) recorded using coherent light divided into diverging reference and object beams that illuminate the HOE from opposite sides. The object beam passes through first and second diffusers with one diffuser being a directional diffuser to more uniformly illuminate the HOE. Optic elements may be used to more closely match beam diameters and/or profiles of the recording wavelengths. Baffles may be positioned on opposite sides of the HOE with openings aligned proximate the reference beam and object beam paths, respectively, to reduce stray reflections and provide ambient air flow attenuation or damping. One or more edges of the HOE are masked to reduce or prevent stray light from entering and reflecting within the HOE during recording.

Abstract: A method includes energizing a solenoid valve of a hydraulic control system according to a predetermined timing schedule to move a valve member of the solenoid valve. The solenoid valve is operatively connected to the switching component by a fluid control passage, such as a passage in an engine block, to deliver pressurized fluid from a supply passage when the valve member moves to switch the switching component from a first mode to a second mode. An operating parameter of the control system is measured. The operating parameter may be a period of time over which the valve member moves, or a sensed operating parameter of the fluid, such as pressure or temperature. The measured parameter is then compared with a predetermined parameter. Energizing of the solenoid valve is then adjusted based on the difference.

Abstract: A method and apparatus for detecting and compensating for pressure transducer errors includes a valve for regulating operation of a hydraulic device, a pressure transducer for detecting a pressure output from the valve, and a microprocessor comprising logic for computing a pressure measurement error of the pressure transducer. The pressure transducer is configured to output a pressure reading representing the detected pressure. The pressure measurement error may be computed using a first pressure reading from the pressure transducer taken at an operating condition in which the actual output pressure of the valve is substantially known, together with the substantially known actual output pressure of the valve.

Abstract: A method includes energizing a solenoid valve of a hydraulic control system according to a predetermined timing schedule to move a valve member of the solenoid valve. The solenoid valve is operatively connected to the switching component by a fluid control passage, such as a passage in an engine block, to deliver pressurized fluid from a supply passage when the valve member moves to switch the switching component from a first mode to a second mode. An operating parameter of the control system is measured. The operating parameter may be a period of time over which the valve member moves, or a sensed operating parameter of the fluid, such as pressure or temperature. The measured parameter is then compared with a predetermined parameter. Energizing of the solenoid valve is then adjusted based on the difference.

Abstract: Systems and methods for creating an autostereoscopic display include a holographic optical element (HOE) recorded using coherent light divided into diverging reference and object beams that illuminate the HOE from opposite sides. The object beam passes through first and second diffusers with one diffuser being a directional diffuser to more uniformly illuminate the HOE. Optic elements may be used to more closely match beam diameters and/or profiles of the recording wavelengths. Baffles may be positioned on opposite sides of the HOE with openings aligned proximate the reference beam and object beam paths, respectively, to reduce stray reflections and provide ambient air flow attenuation or damping. One or more edges of the HOE are masked to reduce or prevent stray light from entering and reflecting within the HOE during recording.

Abstract: A fluid level detection system includes a fluid reservoir defining a cavity for holding fluid therein. A fluid level sensor is mounted to the fluid reservoir. The solenoid body defines a first opening establishing fluid communication between an armature chamber and a cavity defined by the reservoir. Travel time of an armature within the armature chamber is thereby affected by fluid level in the reservoir. A controller is operatively connected to the sensor and is operable to receive a sensor signal indicative of travel time from the sensor and formulate a control signal corresponding thereto. A power source is operatively connected to the controller for energizing the coil and the controller. In some embodiments, multiple fluid containing components are connected with one or more controllers. An engine, a transmission, and rear axle differentials on a vehicle may be equipped with sensors to provide fluid level, temperature and viscosity information.

Abstract: A hydraulic manifold assembly includes a manifold containing a plurality of hydraulic channels that direct fluid to a centralized location and a package disposed at the centralized location to measure fluid pressure at pressure ports corresponding to the hydraulic channels. The manifold assembly directs fluid to the single package rather than scattering fluid outputs to multiple sensor locations, simplifying the overall assembly configuration.

Abstract: Systems and methods for creating an autostereoscopic display include a holographic optical element (HOE) recorded using coherent light divided into diverging reference and object beams that illuminate the HOE from opposite sides. The object beam passes through first and second diffusers with one diffuser being a directional diffuser to more uniformly illuminate the HOE. Optic elements may be used to more closely match beam diameters and/or profiles of the recording wavelengths. Baffles may be positioned on opposite sides of the HOE with openings aligned proximate the reference beam and object beam paths, respectively, to reduce stray reflections and provide ambient air flow attenuation or damping. One or more edges of the HOE are masked to reduce or prevent stray light from entering and reflecting within the HOE during recording.

Abstract: Systems and methods for autostereoscopic display of three-dimensional images include a holographic optical element made by preparing a silver halide gelatin emulsion, coating one side of a glass substrate with the emulsion, holographically recording an eyebox on the coated glass substrate using at least three wavelengths of coherent light combined in a source beam that is divided into a reference beam and object beam with at least one of the reference and object beam passing through a beam shaping device to substantially uniformly illuminate the glass substrate from opposite sides, processing the coated glass substrate, and sealing the coated glass substrate by covering the coated side of the glass substrate with an optical cement and securing to a black glass plate. The element may be mounted in a display and illuminated with at least one projector having optical keystone correction with source wavelengths aligned or matched with the recording wavelengths.

Abstract: A fluid level detection system includes a fluid reservoir defining a cavity for holding fluid therein. A fluid level sensor is mounted to the fluid reservoir. The solenoid body defines a first opening establishing fluid communication between an armature chamber and a cavity defined by the reservoir. Travel time of an armature within the armature chamber is thereby affected by fluid level in the reservoir. A controller is operatively connected to the sensor and is operable to receive a sensor signal indicative of travel time from the sensor and formulate a control signal corresponding thereto. A power source is operatively connected to the controller for energizing the coil and the controller. In some embodiments, multiple fluid containing components are connected with one or more controllers. An engine, a transmission, and rear axle differentials on a vehicle may be equipped with sensors to provide fluid level, temperature and viscosity information.

Abstract: A hydraulic manifold assembly includes a manifold containing a plurality of hydraulic channels that direct fluid to a centralized location and a package disposed at the centralized location to measure fluid pressure at pressure ports corresponding to the hydraulic channels. The manifold assembly directs fluid to the single package rather than scattering fluid outputs to multiple sensor locations, simplifying the overall assembly configuration.

Abstract: A method and apparatus for detecting and compensating for pressure transducer errors includes a valve for regulating operation of a hydraulic device, a pressure transducer for detecting a pressure output from the valve, and a microprocessor comprising logic for computing a pressure measurement error of the pressure transducer. The pressure transducer is configured to output a pressure reading representing the detected pressure. The pressure measurement error may be computed using a first pressure reading from the pressure transducer taken at an operating condition in which the actual output pressure of the valve is substantially known, together with the substantially known actual output pressure of the valve.

Abstract: A pulse width modulated (PWM) valve-based hydraulic control system is disclosed. In one embodiment, a feedback control system includes a controller that receives a pressure command signal and a pressure feedback signal. The controller generates a duty cycle control signal that controls a PWM valve. The PWM valve provides a control pressure Pc to control a load, such as an actuator of an automatic transmission system. A pressure sensor measures the control pressure Pc and provides the pressure feedback signal. In another embodiment, a compensator provides compensation for linear and nonlinear effects in the pressure feedback signal, based at least in part, on other inputs, such as fluid temperature. In other embodiments, a plurality of controllers are provided, and a controller is selected by a switching logic processor, or by phase-in and phase-out filters, based on the pressure feedback signal and other inputs. A re-calibration process for the Pc versus duty cycle response of the PWM valve is also disclosed.

Abstract: A hydraulic manifold assembly includes a manifold containing a plurality of hydraulic channels that direct fluid to a centralized location and a package disposed at the centralized location to measure fluid pressure at pressure ports corresponding to the hydraulic channels. The manifold assembly directs fluid to the single package rather than scattering fluid outputs to multiple sensor locations, simplifying the overall assembly configuration.

Abstract: A system for controlling pressure in a transmission comprises a transmission control unit, a valve controller that receives a desired pressure as input from the transmission control unit, a valve driver, a valve that regulates an amount of fluid in a transmission clutch, and a pressure transducer that reads a pressure in the transmission clutch and outputs a pressure reading to the valve controller, wherein the valve controller comprises logic for outputting to the valve driver an instruction for controlling the valve, the instruction being formulated using the desired pressure and the pressure reading.

Abstract: An imaging tool, including a lens, an imager, and a housing component, can be configured using a focus subsystem and an alignment subsystem. The focus subsystem can perform a focus heuristic using a source image to determine the appropriate focus of the lens. The alignment subsystem can perform an alignment heuristic using a calibration image to calculate the appropriate roll angle for the imager. The system can adjust the focus and alignment of the imaging tool in an automated manner. In some embodiments, the lens and alignment can be moved while they are within the housing component. System calculations can be performed accurately at the sub-pixel level. The system can be configured so that all computations are performed within the imaging tool itself, with the imaging tool passing messages to the configuration system regarding configuration instructions.

Abstract: The disclosure describes systems and methods that pertain to interactions between a vehicle and an occupant within the vehicle. More specifically, various systems and methods for enhancing the decisions of automated vehicle applications (collectively “decision enhancement system”) are disclosed. In a safety restraint embodiment, a sensor is used to capture various sensor readings. Sensor readings are typically in the form of images. Occupant information, such as location attributes, motion attributes, and occupant category attributes can be obtained from the sensor readings. Such information can then used by the system to enhance the decisions made by various automated applications.

Abstract: The disclosure describes systems and methods that pertain to interactions between a vehicle and an occupant within the vehicle. More specifically, various systems and methods for enhancing the decisions of automated vehicle applications (collectively “decision enhancement system”) are disclosed. In a safety restraint embodiment, a sensor is used to capture various sensor readings. Sensor readings are typically in the form of images. Occupant information, such as location attributes, motion attributes, and occupant category attributes can be obtained from the sensor readings. If the system concludes that the deployment of a safety restraint is potentially justified, an at-risk-zone detector can be used to determine whether or not the occupant will be too close to the deploying safety restraint at the time of deployment for the safety restraint to be safely deployed.

Abstract: An imaging tool, including a lens, an imager, and a housing component, can be configured using a focus subsystem and an alignment subsystem. The focus subsystem can perform a focus heuristic using a source image to determine the appropriate focus of the lens. The alignment subsystem can perform an alignment heuristic using a calibration image to calculate the appropriate roll angle for the imager. The system can adjust the focus and alignment of the imaging tool in an automated manner. In some embodiments, the lens and alignment can be moved while they are within the housing component. System calculations can be performed accurately at the sub-pixel level. The system can be configured so that all computations are performed within the imaging tool itself, with the imaging tool passing messages to the configuration system regarding configuration instructions.

Abstract: The disclosure describes systems and methods that pertain to interactions between a vehicle and an occupant within the vehicle. More specifically, various systems and methods for enhancing the decisions of automated vehicle applications (collectively “decision enhancement system”) are disclosed. In a safety restraint embodiment, a sensor is used to capture various sensor readings. Sensor readings are typically in the form of images. Occupant information, such as location attributes, motion attributes, and occupant category attributes can be obtained from the sensor readings. If the system concludes that the deployment of a safety restraint is potentially justified, an at-risk-zone detector can be used to determine whether or not the occupant will be too close to the deploying safety restraint at the time of deployment for the safety restraint to be safely deployed.